On 25 November 1915, Albert Einstein presented his general theory of relativity at the Prussian Academy of Sciences. This theory is still considered to be the most important idea in modern physics.

A man who is 92 years old is not only still competing in his activity of choice, he's teaching others the secrets of how to live a long, healthy and fulfilling life. Ivan Pedley, a retired ...

Here are some of the stocks that may see significant price movement today: Tata Chemicals, Power Grid, Welspun Enterprises, etc.

pH is a measure of how acidic or alkaline a solution is. The diagram below shows what happens to an enzyme when denaturation occurs. Each enzyme has an optimum pH but it also has a working range ...

November 25, 2024 • Books We Love returns with 350+ new titles handpicked by NPR staff and trusted critics. Find 12 years of recommendations all in one place — that's nearly 4,000 great reads.